The ECB Yorkshire Premier League form book was turned upside down on the first of the two scheduled weekend fixtures on Saturday.
Barnsley and Rotherham, the leading pair, fell to shock defeats, allowing York to sneak into second place following their victory over Sheffield United.
Barnsley lost the toss, and the game, at Brumby Hall to Appleby Frodingham, despite a solid 48 by Steve Nuttall.
Second-placed Rotherham were bowled out in the last over for 201 against Cleethorpes at Clifton Lane, and unbroken stand of 67 for the seventh wicket between Harry Warwick, 64no, and Alec Willerton, 28no, gave the visitors an unlikely win. Youngster Vinnie Ogden finishing with an impressive 5-60.
Sheffield Collegiate elected to bat at Weetwood against the in-form Academy, and were grateful to Simon Guy’s 95 to take Matt Dixon’s outfit to a challenging 233.
But they reckoned without former Abbeydale junior Eliot Callis, who hit an outstanding 164 - and shared a first wicket partnership of 153 with Ben Ainsley - as the Academy raced to an eight-wicket victory with 10 overs in hand.
Doncaster hit form at Town Fields, scoring a massive 314-6 against struggling Hull with Alex Gosney smashing seven sixes in his 113no. Andy Simpson dominated the Town attack in Hull’s response, scoring 93 off 123 balls, but on his dismissal they collapsed to 198 all out with occasional bowler Stuart Guy taking 4-23.
Sheffield United won the toss and batted on a perfect batting pitch at SHU Sports Park, but Jaco Scholtz’s dismissal for 75 saw them collapse from 181-3 to 231 all out against York. York had little difficulty reaching the target in 42 overs, with five wickets in hand.
Barnsley regained top spot on Sunday after beating Cleethorpes on a difficult Chichester Road pitch which favoured the bowlers. Ali Jahangir hit 38no to take Town from 85-8 to 139 all out, before Zohaib returned outstanding figures of 7-11 off 11 overs as Cleethorpes were all out for 85.
Rotherham dropped to fourth after suffering a four-run defeat at Driffield. Scholtz scored his first century of the season for United, hitting 10 boundaries and six sixes in a superb 127, and a maiden half century for 16-year-old Matt Rees set Doncaster a target of 253 which, in a hard fought encounter, they reached with six wickets and three overs to spare.
n Fixtures: Barnsley v Castleford, Harrogate v Doncaster, Collegiate v Rotherham, United v App Frod.
n Table: Barnsley 106, York 103, Harrogate 95, Rotherham 93, YCA 86, App Frod 73, Driffield 66, Doncaster 55, Coll 49, United 34, Hull 28.